SOLVED: Logs spammed with the same Error

[arc.]

I have removed the web radios, but the error is still being printed in the logs.

I removed the radios by

1. removing the tuner device
   
2. deleting any .m3u files referring to a webstream
   
3. rescanning the library which contained the .m3u file
   
4. restarting Jellyfin
   

EDIT: I realised Jellyfin hands transcoding off to ffmpeg, which is unaffected by a Jellyfin restart. So to make it easy for myself I just restarted the entire Synology server and now the issue is resolved!

TLDR; Issue was caused by previous attempts to add internet radio streams. Removed these and restarted the entire device hosting Jellyfin and ffmpeg.